219414231 has 8 divisors (see below), whose sum is σ = 325058160. Its totient is φ = 146276136.

The previous prime is 219414199. The next prime is 219414233. The reversal of 219414231 is 132414912.

It is a happy number.

219414231 is a `hidden beast` number, since 2 + 19 + 414 + 231 = 666.

It is not a de Polignac number, because 219414231 - 2⁵ = 219414199 is a prime.

It is a super-2 number, since 2×219414231² = 96285209530642722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8126453 = 219414231 / (2 + 1 + 9 + 4 + 1 + 4 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 219414195 and 219414204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219414233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4063200 + ... + 4063253.

It is an arithmetic number, because the mean of its divisors is an integer number (40632270).

Almost surely, 2^219414231 is an apocalyptic number.

219414231 is a deficient number, since it is larger than the sum of its proper divisors (105643929).

219414231 is an equidigital number, since it uses as much as digits as its factorization.

219414231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8126462 (or 8126456 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 219414231 is about 14812.6375436652. The cubic root of 219414231 is about 603.1448131195.

The spelling of 219414231 in words is "two hundred nineteen million, four hundred fourteen thousand, two hundred thirty-one".